5 Weeks Pregnant: What to Expect


5-weeks-pregnantAt 5 weeks pregnant, your baby is really starting to take shape and become a tiny person. This is a big week for growth and development. Seeing how your baby is developing, knowing what to expect with your own health and having a basic idea about the nutrition to focus on is very important at this week of your pregnancy.

Your Belly at 5 Weeks Pregnant

You may or may not have a visible belly at this stage, depending on your body type and your pregnancy. How much of a belly you have at this stage is fully dependent on the individual. In addition to your belly changes, there are a number of other things that might be happening to you:

  • You might be experiencing morning sickness
  • Fatigue is common at this point in your pregnancy
  • You are likely noticing that you are urinating more frequently at this point
  • Your breasts might be sore at this stage of your pregnancy
  • You might be having changes in your overall mood

Getting an Ultrasound at 5 Weeks Pregnant

Ultrasounds are not generally done at this stage of your pregnancy, but some doctor’s will do them to confirm a pregnancy. If your doctor recommends an ultrasound, it will be a quick and painless process. It also gives you the chance to get a quick glimpse at your growing and developing baby. At this stage, your doctor will likely recommend a traditional ultrasound and not a 3D version.

Your Baby at 5 Weeks Pregnant

Your baby looks similar to a tadpole at this stage of your pregnancy and it approximately the same size as a sesame seed. However, he or she is growing rapidly and consists of three layers, including the mesoderm, ectoderm and endoderm. As time passes, these three layers will start to become the tissues and organs that make up your fully formed baby.

The neural tube is starting to develop and this will include your baby’s nervous system. The ectoderm is responsible for this, as well as your baby’s:

  • Skin, nails and hair
  • Sweat and mammary glands
  • Tooth enamel

The mesoderm is going to give way to the circulatory system. In fact, your baby’s tiny heart is pumping blood and forming chambers. This layer is also responsible for:

  • Muscle and bone
  • Cartilage
  • Subcutaneous tissue

The endoderm is responsible for a number of vital organs, including:

  • Lungs
  • Urinary system
  • Liver
  • Intestines
  • Thyroid
  • Pancreas

Since the neural tube is starting to sprout at this stage, it is critical that you are getting adequate B vitamins, especially folic acid. If you are having difficulty getting nutrients due to morning sickness or other issues, make sure to talk to your doctor. A good prenatal vitamin will ensure that you are getting these nutrients and the others that you need. Proper develop of the neural tube is critical for preventing problems like spina bifida.


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